body {
    font-family: Arial, sans-serif;
    text-align: center;
    margin: 0;
    padding: 0;
    background-color: #f3f3f3;
}

#game-container {
    display: inline-block;
    margin: 20px auto;
}

.grid {
    display: grid;
    grid-template-columns: repeat(10, 30px);
    grid-template-rows: repeat(10, 30px);
    gap: 2px;
    margin: 20px auto;
}

.cell {
    width: 30px;
    height: 30px;
    background-color: #007bff;
    border: 1px solid #ffffff;
    cursor: pointer;
}

.cell.hit {
    background-color: red;
}

.cell.miss {
    background-color: gray;
}

button {
    padding: 10px 20px;
    font-size: 16px;
    cursor: pointer;
}